Definition of radiator in English:


Line breaks: ra¦di|ator
Pronunciation: /ˈreɪdɪeɪtə


  • 1A thing that radiates or emits light, heat, or sound: a dipole is a less efficient radiator of sound than a monopole
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    • It follows, then, that any radiation emitted by the cavity radiator corresponds to the definition of blackbody radiation.
    • Examples of radar reflectors are solar panels and heat radiators.
    • Uncoated glass is a good radiator, so heat radiates from the window and is lost.
  • 1.1A device for heating a room consisting of a metal tank connected by pipes through which hot water is pumped by a central heating system.
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    • My property is a one bedroom flat with 5 radiators, gas central heating and a gas cooker.
    • He made his money by inventing a pipe connector which allows radiators to be swivelled forward without being disconnected, making it easy to wallpaper behind them.
    • A wood-fired boiler is an obvious match for a home with radiators or other hydronic systems (hot water moving through pipes).
  • 1.2A portable oil or electric heater.
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    • Mrs Foster added that ever since the fire was condemned she has had to buy and use portable electric radiators.
    • He went on to say that among the areas which had now become a dumping ground was at the back of Waterford Regional Hospital where someone had left radiators, other heaters and furniture.
    • When you first see the F - 50, it's easy to believe you're looking at a portable radiator.
  • 2An engine-cooling device in a motor vehicle or aircraft consisting of a bank of thin tubes in which circulating water is cooled by the surrounding air: the water in my car radiator froze
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    • The thin air also reduces the engine's power and decreases the cooling efficiency on the oil and water radiators that cool the engine.
    • Water cooled engines include radiator, pump, thermostat, fan and connecting hoses and pipes.
    • The radiator has tubes that contain large amount of water and has an area to allow outside air to pass through.

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Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody